I tried to replace it with a radiator hose (2) the thermostat at 13 years past for part of the maintenance
No problem at all genuine products of equal quality, hose
Warm-up lamp off now also about 1 minutes early
Cracked After disconnecting the hose is bent strongly had been cured
I felt it was about time limit

Since the radiator hose has become soon hard, it was purchased in the exchange plans in the next inspection. Also helpful because the cheap manufacturer parts that can be rest assured that exchange did the last time.